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dogs
infectious disease
| Question | Answer |
|---|---|
| what are the canine diseases caused by herpesviruses | 1.canine herpesvirus 2.pseudorabies |
| canine herpesvirus | influenced by degree of immunity via passive transfer. respiratory infections w/ mild runny nose or cough. adults are asymptomatic, still shed virus |
| canine herpesvirus pathogenicity | 2-4wks:mild to asymptomatic disease. high mortality rate in puppies exposed in 1st wk of life 4+wks: occasional disease 6+months: rare disease. |
| canine herpesvirus clinical signs | unwillingness to nurse, painful crying, abdominal pain, difficulty breathing, nasal discharge, yellow/green soft feces |
| canine herpesvirus signs at necropsy | disseminated docal necrosis and hemorrhage of multiple organs. splenomegaly. LN enlargement. CNS lesions |
| canine herpesvirus treatment | supportive therapy for puppies. No vaccine |
| pseudorabies | hunting feral pigs ot feeding infected meat to dogs. "Mad itch"= self destruction |
| what canine diseases caused by adenoviruses | 1. infectious canine hepatitis (type 1) 2. infectious canine tracheobraonchitis (type2) (kennel cough) |
| Kennel cough | caused by various bacterial and viral agents, including Bordetella bronchiseptica, canine parainfluenza, canine, distemper, serotype 2 of canine adenoviruses. causes upper respiratory airways in dogs |
| kennel cough clinical signs | dry, hacking cough. loss of appetite and lethargy in severe cases. fever, productive cough, possibly vomiting and diarrhea if 2nd bacterial infection has occurred |
| kennel cough treatment | uncomplicated infections let virus run its course. disease is highly contagious and infected dogs should be isolated. vaccine available |
| infectious canine hepatitis: sudden death form | fever accompanied by depression and lethargy, no warning signs. sudden death which may be mistaken for poisoning |
| infectious canine hepatitis: severe form | bleeding gums, bloody diarrhea which may be accompanied by vomiting. shock or coma. death occurs 3-5days after onset of clinical signs |
| infectious canine hepatitis: moderate form | depression,lethargy, abdominal pain, distension, pale mucous membranes, anorexia. recovery period occurs w/in 4-7 days of illness onset. dogs that recover, corneal opacity and immune response |
| infectious canine hepatitis transmission | shed in all body secretions. animal that recovers has life long immunity but will continue to shed virus in urine for up to 9mo. |
| infectious canine hepatitis pathogenesis | tonsils, LN, blood, liver, kidney, other organs where it then replicates. |
| canine papillomavirus: canine warts | occur principally in mouth. may require surgery or euthanasia |
| important property of parvovirus | only replicates in dividing cells! highly resistant, can persist in environmenton inanimate objects |
| canine parvovirus | highly contagious, affects all ages.less than 6mo most susceptible. |
| canine parvovirus clinical signs | depression, anorexia, vomiting, diarrhea (bloody), fever |
| canine parvovirus vaccine | 1 yr modified live vaccine. maximum protection against all strains. |
| diseases caused by paramyxoviruses | 1.canine distemper 2. canine parainfluenza virus |
| properties of paramyxoviruses | unstable in env. respiratory and systemic clinical presentations. transmission by direct contact and dropley |
| canine distemper | resurgence in shelters. multiorgan disease (respiratory tract, gastrointestinal tract, CNS). Seizures in dogs less than 6mo. Several strains of different severity. immunosuppression |
| canine distemper clinical signs | incubation of 1 wk. fever. conjunctivitis. nasal discharge. bronchitis. gastroenteritis. CNS. Chorea. |
| canine distemper transmission | shed in all bodily excretions. no clinical signs in first wk but virus travels in body. |
| canine distemper pathogensis | respiratory epithelium and alveolar macrophages. w/in 2 days virus spreads to mononuclear cells of bronchial LN. |
| canine distemper treatment | supportive. |
| long term problems associated w/ distemper | seizures, tear deficiency, changes in foot pads/nose (hard crust on the edges of pads). damage to retina leaving visible scaring. enamel deposition b/c of ameloblast infection |
| canine distemper vaccine | 1 yr. modified live. hard to treat successfully. |
| rabies clinical signs | infection of limbic system. restlessness, wandering, hypersensitivity to stimulus,hydrophobia, muscular spasms of facial, laryngeal,pharyngeal muscles, blood in vomit, inability to swallow saliva |
| what species introduced influenza into canine | horse and poultry |
| influenza in canine | greyhounds: acute disease, hemorrhagic pneumonia, death. all others: fever, nasal, discharge, cough |
| influenza control | dogs that frequent shows, or get boarded frequently, should be vaccinated |
| enteric coronavirus in dogs | mild enteritis. co-infection can exacerbate infection with canine parvovirus |
| coronavirus spread | contact with oral secretions or contact with infected feces. fairly resistant virus, can remain infectious for several days. |
Created by:
ejohnson17
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